This is a flat backed cabochon. They are domed on top .Goldstone is a man-made colored glass that contains abundant, flat-faced, highly reflective inclusions The reflective inclusions have a bright metallic luster, and their glittering appearance immediately attracts attention. This exciting appearance has made goldstone a popular man-made gem and sculptural material. We offer the same stones in a lot of sizes and it is easy to get the wrong size as the pictures all look similar. Size is listed in the product title in millimeters (mm) 25x18mm Brown Goldstone Cabochon Flat Backed Loose Gemstone 853x
